Coil Winding Specialist Inc. (CWS) is your mobile gateway to precision magnetic components—designed and manufactured entirely in California, USA. Since 2004, CWS has delivered full custom engineering and production services for inductors, chokes, coils, and transformers across medical, military, industrial, and HVAC sectors.

Made in USA. Built for Performance.

California-Based Manufacturing
All products are engineered and produced in the USA by expert power electronics engineers.
Secure Online Ordering
Access over 1,000 standard magnetic components—from samples to small production runs—direct from the manufacturer.
Fast, Transparent Quotes
Get instant pricing for custom or standard parts without contacting multiple suppliers.
Full-Service Capabilities
ISO-certified and ITAR-compliant for regulated industries. From design to production, CWS supports your entire product lifecycle.
Whether you need ferrite common mode chokes, power inductors, air coils, transformers, or noise filters—CWS delivers American-made quality with speed and precision